var temp;

window.onload = document.onLoad = function(e)
{
	
	var aTags 		= document.getElementsByTagName('a');
	var dropdowns	= document.getElementsByTagName('div');
	// Loopje door de a tags van het header menu
	for (var a = 0; a < aTags.length; a++)
	{
		if (aTags[a].id && aTags[a].className == 'topmenu' || aTags[a].className == 'topmenu active')
		{
			aTags[a].onmouseover = function(){ dropdown('sub_' + this.id,'block');} 
			aTags[a].onmouseout  = function(){ dropdown('sub_' + this.id,'none'); } 
		}
		if (aTags[a].className == 'maillinks')
		{
			var link = aTags[a].innerHTML;
			link = link.replace("[at]", "@");
			link = link.replace("[dot]",".");
			aTags[a].innerHTML = link;
			aTags[a].href = "mailto:" + link;
		}
	}
	
	// Loopje door de dropdowns
	for (var a = 0; a < dropdowns.length; a++)
	{
		if (dropdowns[a].className == 'dropdown')
		{
			dropdowns[a].onmouseover = function(){ dropdown(this.id,'block'); } 
			dropdowns[a].onmouseout  = function(){ dropdown(this.id,'none'); } 
		}
	}

}

// Dropdown menu
function dropdown(id, value)
{

	var target		= document.getElementById(id);
	
	if (target) target.style.display			= value;

}

// Check form
function checkForm(f)
{
	if (f.id == 'contactform')
	{
		// Naam
		if (f.naam.value == "")
		{
			alert("Geen naam ingevuld.");
			return false;
		}
		// Telefoonnummer 
		if (f.telefoon.value == "" || isNaN(f.telefoon.value))
		{
			alert("Geen (juist) telefoonnummer ingevuld.");
			return false;
		}
		// Email
		if (f.email.value == "" || f.email.value.search(/^.*@.*\..*$/) == -1)
		{
			alert("Geen (juist) email-adres ingevuld.");
			return false;
		}
		//
		// Telefoonnummer 
		if (f.bericht.value == "")
		{
			alert("Geen bericht ingevuld.");
			return false;
		}
		return true;
	}
}